Decimals

This topic has expert replies
Source: — Data Sufficiency |

Junior | Next Rank: 30 Posts
Posts: 24
Joined: Tue Apr 08, 2008 8:51 am
Thanked: 2 times

by ashishjha100 » Sun Sep 07, 2008 7:21 pm
wx=y xy=?

ie substitute y=wx in xy ==> x*xy= x^2*y

st1: gives x^2*y=16 so sufficient

st2: only y value , so cannot find without x ...so not sufficient.